The BBC said 57-year-old Liu Zia, who has been absconding since 2010, won the Ziaobo Nobel Prize. There is no allegation of crime against him.
Xiaobo was one of China's leading pro-democracy campaigners and critics of the state. He died last year when he was sentenced to 11 years in prison for treason.
Concerns about his wife Liu have increased since Xiaobo's death. He is heard that he is suffering from depression since year after year.
Liu's friends and lawyers say they have been disconnected. Liu is not allowed to meet journalists.
Several human rights groups have been calling Beijing for years to release Liu Zia for many years. But China authorities say Liu is free. She does not meet people because of her husband's death.
But Liu's friend Liao said that earlier this week he talked to Liu on the phone. At the same time, Liu said that it is better to die than to survive.
Liaoyo wrote the details of that conversation on the China website There he said, Liu also said that "I have nothing to fear. I can not get out of the house. I'll die from home. Xiaobo is gone. I have nothing in this world now. "
Liaoyu also uploaded a recording of the conversation with Liu. There Liu was heard crying for a few minutes. Liu said, "I am ready to die here ... when I die, everything will go away."
Western diplomats have urged Beijing to let Liu travel abroad. The German ambassador to China also told South China Morning Post, Germany ready to welcome Liu.